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What is stereo?




There are now two system of high fidelity, monophonic (monaural) and stereophonic. Monophonic is a system that starts from one microphone and is fed through a single high fidelity set. Stereophonic is a double system. Two separate microphones are placed at different sides of the orchestra and two different systems are used to keep the two signals or channels separated. Two separate speakers are used, placed on different sides of you room. Stereo is much like 3-D photography, two slightly different sound reach your ears giving you a new dimension in sound.



H.H. Scott '59





KEF Concerto

 Concerto (1969 - 77)
The Concerto, released in 1969, was KEF’s latest high quality three-way loudspeaker system. It maintained the KEF practice in high end systems of using a dedicated midrange driver to cover the critical vocal range, in this case the newly developed 5” bextrene coned B110. Together with the new T27 ¾” melinex domed tweeter and the established B139 bass driver, it offered full range reproduction with low distortion, high power capacity and wide dispersion.

Intended for professionals and serious enthusiasts, the Concerto became a major success and remained in production until 1977 when it was superseded by the Cantata.

Specification: Concerto
System type: Three-way, floor standing
Enclosure type: Reflex
Size: 28 x 17 x 12 inches (711 x 432 x 305 mm)
Weight: 50 lb (22.7kg)
Input impedance: 8 ohms
Power rating: 30W
Crossover frequencies: 400, 3500Hz
Frequency range: 30-30,000Hz
System: A6614
Drive units: B139 bass unit (A6171), B110 midrange unit (A6362), T27 tweeter (A6340)
Crossover: A6606
System: SP1005
Drive units: B139 bass unit (A6171), B110 midrange unit (A6362), T27 tweeter (A6340)
Crossover: SP1002
System: SP1006
Drive units: B139 bass unit (A6171), B110 midrange unit (SP1003), T27 tweeter (SP1032)

Crossover: SP1004
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